---
product_id: 79718172
title: "ECO Transparent Blue Fountain Pen F nib"
brand: "twsbi"
price: "12300 som"
currency: KGS
in_stock: true
reviews_count: 8
url: https://www.desertcart.kg/products/79718172-eco-transparent-blue-fountain-pen-f-nib
store_origin: KG
region: Kyrgyzstan
---

# Transparent Blue Body Multiple Nib Sizes (EF-F-M-B-Stub1.1) Piston Filler Ink System ECO Transparent Blue Fountain Pen F nib

**Brand:** twsbi
**Price:** 12300 som
**Availability:** ✅ In Stock

## Summary

> 🖋️ Elevate your everyday writing—because your ideas deserve a pen as bold as you are.

## Quick Answers

- **What is this?** ECO Transparent Blue Fountain Pen F nib by twsbi
- **How much does it cost?** 12300 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/79718172-eco-transparent-blue-fountain-pen-f-nib)

## Best For

- twsbi enthusiasts

## Why This Product

- Trusted twsbi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Designed for Every Pro:** Whether you’re a fountain pen newbie or a seasoned expert, this pen delivers smooth, reliable performance every day.
- • **Effortless Ink Mastery:** Piston filler mechanism offers a large ink capacity—write longer, refill less, and never miss a beat.
- • **Secure Seal, No Dry-Out:** Inner cap technology ensures your pen stays perfectly sealed, so your ink is always ready when you are.
- • **Crystal Clear Creativity:** Show off your ink flow with a sleek transparent blue demonstrator body that’s as stylish as it is functional.
- • **Tailored Writing Experience:** Choose from five precision nib sizes to match your unique handwriting style, from fine details to bold statements.

## Overview

The TWSBI ECO Transparent Blue Fountain Pen features a piston filler system with a large ink reservoir, a transparent demonstrator body for visible ink levels, and five nib size options (EF, F, M, B, Stub 1.1) to suit all writing preferences. Its inner cap ensures a perfect seal to prevent ink drying, making it an ideal, reliable choice for both beginners and experts seeking a high-quality, stylish fountain pen.

## Description

Comes in EF, F, M, B, Stub1.1 nib choices Piston Filler Fountain pen. Simply unscrew the end cap, dip into ink, screw back the end cap, and your done! Ready to write!! Pen cap has an inner cap to insure a perfect seal when stored away. Made for the beginner who just wants to try out fountain pens, all the way to the experts. A good everyday worker.

Review: This should be the standard! - I finally understand the hype. For the price, this should be the standard for a good pen with a top quality nib that can compete with any higher priced fountain pen.
Review: Huge tank and smooth writer - Great pen. I love the large tank and it is a smooth writer. I never have any trouble getting the ink to flow even if it ends up sitting for a week or two.

## Features

- Piston Filler Fountain Pen
- Pen cap is able to post onto the back of the pen
- Comes in EF, F, M, B, or stub1.1 nib size choices.
- Inner cap to insure a perfect seal when pen is capped
- Transparent Blue, Clear demonstrator

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HG8862F |
| Additional Features | Transparent |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #227,989 in Office Products ( See Top 100 in Office Products ) #1,042 in Fountain Pens |
| Body Shape | Rectangular |
| Brand | TWSBI |
| Brand Name | TWSBI |
| Closure Type | Screw |
| Color | Blue |
| Customer Reviews | 4.7 out of 5 stars 256 Reviews |
| Drill Point | Fine |
| Global Trade Identification Number | 04711467446879 |
| Grip Type | Smooth |
| Hand Orientation | Right |
| Hardness | F |
| Ink Base | Water |
| Ink Color | Not included |
| Item Diameter | 12.8 Millimeters |
| Item Dimensions | 5.43 x 0.5 x 0.5 inches |
| Item Weight | 50 Grams |
| Line Size | 0.3mm |
| Manufacturer | TWSBI |
| Material | Metal, Plastic |
| Material Type | Metal, Plastic |
| Model Number | TW100047 |
| Recommended Uses For Product | Writing |
| Theme | Minimalist |
| Unit Count | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Fountain Pen |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** TWSBI
- **Color:** Blue
- **Ink Color:** Not included
- **Writing Instrument Form:** Fountain Pen

## Images

![ECO Transparent Blue Fountain Pen F nib - Image 1](https://m.media-amazon.com/images/I/51sJIx00ogL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This should be the standard!
*by A***R on December 23, 2025*

I finally understand the hype. For the price, this should be the standard for a good pen with a top quality nib that can compete with any higher priced fountain pen.

### ⭐⭐⭐⭐⭐ Huge tank and smooth writer
*by J***Y on July 8, 2025*

Great pen. I love the large tank and it is a smooth writer. I never have any trouble getting the ink to flow even if it ends up sitting for a week or two.

### ⭐⭐⭐⭐⭐ Amazing Pen
*by K***E on February 19, 2025*

This is an extremely solid fountain pen for the price. It is easy to load up a lot of ink and writes very smoothly. The cap stays on nicely since it is a twist on and posts on the back of the pen as well.

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**Shop now:** [https://www.desertcart.kg/products/79718172-eco-transparent-blue-fountain-pen-f-nib](https://www.desertcart.kg/products/79718172-eco-transparent-blue-fountain-pen-f-nib)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-08*